package com.Tread;

import java.util.concurrent.Semaphore;
import java.util.concurrent.ThreadPoolExecutor;

public class Semaphore1 {
    public static void main(String[] args) throws InterruptedException {
        Semaphore semaphore = new Semaphore(0);
        ThreadPoolExecutor executor = SingleThreadPool.getInstance();
        

        System.out.println(1);

    }
}
